Re: [9fans] OSX Drawterm hangs on close

[Pietro Gagliardi <pietro10@mac.com>]

Also realize that Cocoa is written in Objective-C, not C, so you need
to learn a new language to get your hands on it. You CAN write a C
wrapper around the Objective-C (it was originally a C preprocessor),
but I don't think elite Mac programmers would recommend it.

On Apr 8, 2008, at 10:32 AM, Jeff Sickel wrote:

>
> On Apr 8, 2008, at 8:34 AM, Anant Narayanan wrote:
>>
>> On 06-Apr-08, at 8:46 AM, erik quanstrom wrote:
>>>> it's a known bug, but i don't think there's a fix for it.
>>>
>>> what's the bug?
>>
>> drawterm on OS X needs to be rewritten in Cocoa.
>
> Cocoa isn't completely needed... just getting rid of the Carbon
> framework dependancy.
>
> On 10.5.2, when quit from Dock->drawterm->Quit (should be the same
> as a menu command for quit) we get:
>
> (gdb) info threads
>   6 process 4410 thread 0x5b03  0x902d2bce in __semwait_signal ()
>   5 process 4410 thread 0x5903  0x902d2bce in __semwait_signal ()
>   4 process 4410 thread 0x5803  0x902d2bce in __semwait_signal ()
>   3 process 4410 thread 0x5703  0x902d2bce in __semwait_signal ()
> * 1 process 4410 local thread 0x2f27  0x9031bb8e in recvfrom
> $UNIX2003 ()
> (gdb) bt
> #0  0x9031bb8e in recvfrom$UNIX2003 ()
> #1  0x9031bb81 in recv$UNIX2003 ()
> #2  0x00019c71 in so_recv (fd=5, d=0x162b0060, n=65536, f=0) at
> devip-posix.c:209
> #3  0x00018745 in ipread (ch=0x13cd70, a=0x162b0060, n=65536,
> offset=0) at devip.c:377
> #4  0x0000ba81 in devbread (c=0x13cd70, n=65536, offset=0) at dev.c:
> 414
> #5  0x0001f605 in ensure (s=0x1571d0, l=0x157224, n=3) at devssl.c:431
> #6  0x0001f9e0 in sslbread (c=0x141de0, n=4, o=33837) at devssl.c:579
> #7  0x0001ff00 in sslread (c=0x141de0, a=0x847600, n=4, off=33837)
> at devssl.c:683
> #8  0x00028e00 in kread (fd=7, buf=0x847600, n=4, offp=0x0) at
> sysfile.c:408
> #9  0x00028ea8 in _syspread (fd=7, buf=0x847600, n=4, off=-1) at
> sysfile.c:434
> #10 0x0002a34c in sysread (fd=7, buf=0x847600, n=4) at sysfile.c:1072
> #11 0x00058135 in readn (f=7, av=0x847600, n=4) at readn.c:13
> #12 0x0005802a in read9pmsg (fd=7, abuf=0x847600, n=8240) at
> read9pmsg.c:14
> #13 0x0002eb9a in exportfs (fd=7, msgsz=8240) at exportfs.c:84
> #14 0x00003546 in cpumain (argc=0, argv=0xbfffeeec) at cpu.c:208
> #15 0x000025b8 in main (argc=7, argv=0xbfffeed0) at main.c:68
>
>
> I'll try building w/ proper 10.5 symbols and run a few more tests
> to find out which part of the event loop should really be catching
> the Quit message.
>
> jas
>
>